20851011

素因数分解:

$3^2\times {\mathrm{83}}^1\times {\mathrm{103}}^1\times {\mathrm{271}}^1$

素因数の和:463

約数の個数: 24

約数和(自身を含む): 30890496

約数和(自身を除く): 10039485

約数列:

[1, 3, 9, 83, 103, 249, 271, 309, 747, 813, 927, 2439, 8549, 22493, 25647, 27913, 67479, 76941, 83739, 202437, 251217, 2316779, 6950337, 20851011]

約数ペア:

[(1, 20851011), (3, 6950337), (9, 2316779), (83, 251217), (103, 202437), (249, 83739), (271, 76941), (309, 67479), (747, 27913), (813, 25647), (927, 22493), (2439, 8549)]